World's
first*1 Dual Layer 8.5GB DVD-R DL disc launched
(TOKYO, JAPAN) Mitsubishi Kagaku Media Co.,
Ltd. (MKM) today announced the world's first dual layer DVD-R disc made to DL
standards to be launched this spring.
"Sales of DVD recording drives
show tremendous increases worldwide," says Shigeru Tamura, MKM Chief Information
Officer. "And industry estimates*2 put demand for DVD discs in 2005
at some 2.5 billion units, which is a year-on-year increase of 79%." As users
record more images and movies, data density increases and people ask for greater
capacity DVD recording discs. To meet this demand, MKM launched the world's
first double layer DVD+R discs in May 2004, which were well received in the
market. Now, MKM will be the first one to launch a single sided dual layer media
in the DVD-R format, which is the most popular format.
With development of this new disc,
capacity of DVD-R discs is now double*3 that of conventional discs of
this type. When using these new discs in compatible DVD drives, not only large
amounts of data can be recorded continuously on the discs, but also the discs
can be used in conventional DVD players of PC DVD-ROM drives to playback the
recordings.
NOTES:
*1 As of February 16,
2005
*2 Japan
Recording-Media Industries Association
*3 Compared to
conventional DVD-R capacities of 4.7 GB, MKM's new disc offers 8.5 GB
capacity.
* Data must be recorded on this
product with a single-sided dual-layer DVD-R compatible drive. Other drives
cannot be used.
(Characteristics)
Manufacturing of single-sided
double-layer discs requires a high level of production technology to lay down
the L0 and L1 layers, coat them with recording material, and place spacers
between them. MKM uses proprietary DYN-AZO recording material for recording DVD
discs, and application of the technology we developed for this organic recording
material enabled MKM to develop single-sided double-layer recording media. In
addition, as our advanced stamper technology, combined with ultra-precise
substrate molding technology, achieves high writing speed and low error
recording for superior recording and playback
compatibility.
Source: Mitsubishi Kagaku Media
